A new study describes a type of cartilage that may have been discovered, forgotten and found again at several points in history.

As many as 40% of Americans are obese, putting them at an increased risk for high blood pressure, diabetes, stroke, heart disease and certain cancers, according to the CDC.

The tissue, which they call "lipocartilage," superficially looks a lot like adipose tissue — better ... cartilage type" may "warrant updates to histology and anatomy textbooks." ...